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Ell authored
Add a gimp-register-file-handler-priority procedure, which can be used to set the priority of a file-handler procedure. When more than one file-handler procedure matches a file, the procedure with the lowest priority is used; if more than one procedure has the lowest priority, it is unspecified which one of them is used. The default priority of file-handler procedures is 0. Add the necessary plumbing (plus some fixes) to the plug-in manager to handle file-handler priorities. In particular, use two different lists for each type of file-handler procedures: one meant for searching, and is sorted according to priority, and one meant for display, and is sorted alphabetically.
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